Coping-machine.



J. G. & 11. L. BENSTBR.

GOPING MACHINE.

AYPLIOATION Hmm 111111121. 1910.

Patented Sept. 19, 1911.

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COLUMB'IA PLANDGRAPII C0., WASHINGTON, D. C.

J. G. & H. L. BENSTER.

DOPING MACHINE.

APPLICATION FILED JUNE 21, 1910.

Patented Sept, 19,1911.

3 SHEETS-SHEET 3.

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df/J@ ATTURNEYS CDLUIBIA PLANOGIAPII C0., WASHINGTON. D. C.

UNrTEn sTaTEs PATENT oEEioE.

JOSHUA G. BENSTER AND HALSEY L. BENSTER, OF MOLINE, ILLINOIS.

COPING-IVIACHINE.

Specification of Letters Patent.

Patented Sept. 19, 1911.

To allwhom it may concern:

Be it known that we, JosnUA G. BnNs'rnR `and Hanser L. BnNs'rnz, citizens of the United States, and residents of Moline, in the county of Rock Island and State ot' Illinois, have invented a new and Improved Coping-lvlachine, of which the following is a full, clear, and eXact description.

The invention relates to cutting and punching sheets and bars, and itsl object is to provide a new and improved coping machine more especially designed for shaping the ends ot I-beams, channel beams and other beams used-in structural steel work, to insure close fitting of' adj acont members at an angle ofQOO or less, as the case may be.

For the purpose mentioned, use is made of coacting dies, having specially arranged cutting edges, for first cutting off the end portions of the flanges of the beam and subsequently trimming` the web of the beam.

A practical embodiment of the invention is represented in the accompanying draw ings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure l is a side elevation of the coping machine and showing a channel beam in position thereon; Fig. 2 is a front elevation of the same; Fig. 3 is an enlarged inverted plan view of the movable die; Fig. 4 is an enlarged plan view of the anvil die; Fig. 5 is a perspective view of' a channel beam having the end portions of the flanges cut off; Fig. 6 is a like view of the finished end4 of a channel beam; Fig. 7 is a horizontal section of the upper die showing the cutting oi the flanges, and Fig. 8 is a similar vieW showing the cutting of the web of the beam. On the body A of the coping machine is secured an anvil B, carrying an anvil die C, operating in conjunction with an oppsitelydisposed movable die D, attached to the under side of a cross head E, secured to a plunger or a ram F, moving up and down in suitable bearings arranged in the overhanging arm A forming part of the body A, suitable mechanism being provided for imparting an up and down reciprocating motion to the plunger F, the said mechanism being similar to the one generally employed in punches and shears of any approved construction, as now constructed.

The anvil die C is provided With two sets of L-shaped cutting edges C, operating in conjunction with similar L-shaped cutting edges D, formed on the removable die D, as i plainly indicated in Figs. 3 and 4, each set of' cutting edges D being-spaced apart by a longitudinally-extending slot D2, and the outer ends of the cutting edges C', D terminate in angular trimming edges C2, D3.

.ln using the machine, two beams G are placed in position on the anvil die C, from opposite sides ot' the machine, so that the adjacent ends of the said beams are acted on sinuiltancously, with a View to first cut off the cud portions of the flanges G and to subsequently trim the webs G2, as indicated iu- Figs. 5 and 6.

ly reference to Figs. l and 2 it will be noticed that the cross head E with slots E, in register vwith the slots D2 t'cr the passage oi the web G2 of the beam (i, and the said cross head E is iliade hollow, to accommodate the flange G uppermost vat the time, as indicated in Figs. 1 and 2. Now when the beams G are in position on the machine as described and the plunger F moves downwardly, then the cutting edges D', C coact to cut ofI'l the end portions of the lov-.'ermost flanges G of the two beams, and when this has been done the beams are placed upside down, and the above described operation is repeated, to cut off the end portions o'f the other flanges, as plainly indicated in Fig. 5. After this has been done, the beams G are laid down flat on the anvil die C, as indicated in dotted lines in Fig. l, and then the plunger F is moved do\vn ward to cause the cutting edges C2, D3 to trim off the corners of the projecting ends of the webs G2, as plainly indicated in F Thus', from the foregoing, it will be seen that by the arrangement described, the ends of the beams can be readily shaped, to insure close fitting of the beams placed at an angle of 90 or less one relative to the other.

As shown in Figs. 3 and 4, the cutting edges of' the dies are arranged to cut the flanges at right angles relative to the Web, but in case it is desired to cut the flanges at 600, Ll-o or any other number of degrees less than 90o, thon the cutting edges C', D are shaped correspondingly to cut the flanges at the desired angle. ln case the angle of the coping is more acute, so that the flange of a beam interferes With one corner of the upper die, then the shape of the die is slightly altered by removing the opposite web trimming and cutting edges,

is provided Y and turning the beam end for end, in order to obtain the angle, and turning the beam twice on its side to trim both sides of the web.

Having thus described our invention, We claim as new and desire to secure by Letters Patent:

l. A coping machine, comprising an anvil, a hollow cross head reciprocating toward yand from said anvil and provided with lon gitudinal slots for receiving and permitting the passage of the web of the beam to be coped, an anvil head secured on the said anvil, and a head secured on the cross head, the said heads each having at opposite sides thereof a pair of oppositely arranged L- shaped cutting edges, each pair being separated by a slot, each of the L-shaped cutting; edges terminating in an outwardly extendingftrimming edge for the purpose specifiech 2. A coping machine, comprising an anvil, a cross head reciprocating toward and from the said anvil and having longitudinal openings for permitting the passage of the web of the beam on the anvil, a head on the cross head, the said heads each having at opposite sides thereof a pair of oppositely arranged L- shaped cutting edges,

ting edges terminatingin a lateral trimming edge.

In testimony whereof we have signed our names to this speciiication in the presence ci' two subscribing witnesses.

JOSHUA G. BENSTER.

HALSEY L. BENSTER.

Nitnessesz FRANK MIDDELKAMP, LOGAN NIoHoLsoN.

Copies of this `patent may be obtained for ve cents each, by addressing Athe Commissioner of Patents,

Washington, D. C.

to be coped, an anvil head n each pair being separated by an opening, each of the said cut- 

